Patch merged into coreboot/master: b13799f lynxpoint: Move USB SMI sleep code to separate USB files

the following patch was just integrated into master:
commit b13799f370e997d56d3ed733f903ef94f5bafd00
Author: Duncan Laurie 
Date:   Tue Jul 30 15:53:45 2013 -0700

lynxpoint: Move USB SMI sleep code to separate USB files

Move this to the existing USB source files so they can share some
    helper functions and keep the main smihandler code cleaner.

The XHCI sleep prepare code now implements the actual sleep
    preparation steps from the ref code instead of the docs.

Change-Id: Ic90adbdaba947a6b53824e548c785b4fb3990ab5
    Signed-off-by: Duncan Laurie 
    Reviewed-on: https://gerrit.chromium.org/gerrit/63800
    Reviewed-by: Aaron Durbin

See http://review.coreboot.org/4406 for details.

-gerrit